Designation:D8370−22StandardTestMethodforFieldMeasurementofElectrochemicalImpedanceonCoatingsandLinings1ThisstandardisissuedunderthefixeddesignationD8370;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheprocedureforfieldmeasure-mentofelectrochemicalimpedancespectroscopy(EIS)forpolymericcoatingsoverconductivesubstrates.1.2Thistestmethodcoverstheparametersfordetermininganadequatesamplesize.1.3Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D16TerminologyforPaint,RelatedCoatings,Materials,andApplicationsD610PracticeforEvaluatingDegreeofRustingonPaintedSteelSurfacesD660TestMethodforEvaluatingDegreeofCheckingofExteriorPaintsD661TestMethodforEvaluatingDegreeofCrackingofExteriorPaintsD714TestMethodforEvaluatingDegreeofBlisteringofPaintsG3PracticeforConventionsApplicabletoElectrochemicalMeasurementsinCorrosionTestingG106PracticeforVerificationofAlgorithmandEquipmentforElectrochemicalImpedanceMeasurementsG193TerminologyandAcronymsRelatingtoCorrosionG215GuideforElectrodePotentialMeasurement2.2ISOStandards:3ISO16773-1Electrochemicalimpedancespectroscopy(EIS)oncoatedanduncoatedmetallicspecimens—Part1:Termsan...
